Featured Publications

• AASHTO LRFD Bridge Design Specifications, 9th Edition

  

  The AASHTO LRFD Bridge Design Specifications are intended for use in the design, evaluation, and rehabilitation of bridges. The specifications employ the Load and Resistance Factor .....
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• Guide Specifications for Highway Construction, 10th Edition

  

  These guide specifications provide guidance for developing transportation contract specifications and are the national standard for best practices in highway and road construction. This consensus-based guide .....
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• Mechanistic-Empirical Pavement Design Guide: A Manual of Practice, 3rd Edition

  

  This 2020 3rd edition includes the following revisions and updates from the previous 2015 2nd edition: new fracture mechanics-based model for reflective cracking in AC overlays over flexible, .....
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• Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards, 40th Edition, 2020, Single-User PDF Download

  

  The AASHTO Materials Standards contain specifications, test methods, and provisional standards commonly used in the construction of highway facilities. The Materials Standards are updated three times .....
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• Manual for Assessing Safety Hardware, Second Edition

  

  This manual encourages consistency in testing and evaluation of roadside safety features. It includes a new matrix for cable barrier testing on slopes, modifications to several .....
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